Thread:TrinityFlare/@comment-27248965-20170601154421/@comment-27248965-20170610005324

Go to the user's contribution page, there should be a link saying "Block". Or, go to the page history, there should also be a "Block" link for each editor. Even Special:RecentChanges provides "Block" link for the contributors involved. The final method is to just type in the user name in Special:Block.